Which of the Following Is Not a Parse Tree of an Expression

question 8

Multiple Choice

Which of the following is not a parse tree of an expression based on the following grammar?

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Definitions:

Chi-squared Distribution

A probability distribution that describes the distribution of the sum of the squares of variables that are independently distributed according to a standard normal distribution.

Degrees of Freedom

The number of independent values or quantities that can vary in an analysis without violating any constraints.

Hypothesis Test

A procedure in statistics to determine if there is enough evidence to reject a null hypothesis in favor of an alternative hypothesis.

Chi-square Distribution

A statistical distribution used particularly in hypothesis testing, derived from the sum of the squares of a set of variables that follow a normal distribution.